2878018905 has 16 divisors (see below), whose sum is σ = 4605534144. Its totient is φ = 1534708800.

The previous prime is 2878018837. The next prime is 2878018907. The reversal of 2878018905 is 5098108782.

2878018905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2878018905 - 2¹¹ = 2878016857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2878018907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138027 + ... + 157503.

It is an arithmetic number, because the mean of its divisors is an integer number (287845884).

Almost surely, 2^2878018905 is an apocalyptic number.

It is an amenable number.

2878018905 is a deficient number, since it is larger than the sum of its proper divisors (1727515239).

2878018905 is a wasteful number, since it uses less digits than its factorization.

2878018905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29336.

The product of its (nonzero) digits is 322560, while the sum is 48.

The square root of 2878018905 is about 53647.1705218458. The cubic root of 2878018905 is about 1422.4310180977.

The spelling of 2878018905 in words is "two billion, eight hundred seventy-eight million, eighteen thousand, nine hundred five".